Summary
Excess representation
- alternative to sign-and-magnitude, same range as 2s complement
- even distribution of +ve and -ve values
in general, given
nbits, we use excess-2ⁿ⁻ⁱ or excess-(2ⁿ⁻ⁱ-1)
Concept
Excess-n
- translation by
n
Application
Excess-2 on 3 bits
Essentially excess-
implies that there are -ve values, the remaining space is filled with 0 and +ve values
Excess-1023